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Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11
 
                    
+
  
=
                      
 
   Green Box   DeepSkyBlue Box   Turquoise Box   OliveDrab Box   DarkMagenta Box   Pink Box   SpringGreen Box   MediumTurquoise Box   Lavender Box   DarkViolet Box  plus     Coral Box  equals     Green Box   DeepSkyBlue Box   Turquoise Box   OliveDrab Box   DarkMagenta Box   Pink Box   SpringGreen Box   MediumTurquoise Box   Lavender Box   DarkViolet Box   Coral Box

We start with ten boxes, add one box, and now have eleven boxes.


Here's another example:

10
+
2
=
12
 
                    
+
    
=
                        
 
   DodgerBlue Box   MediumSpringGreen Box   SaddleBrown Box   Fuchsia Box   Chartreuse Box   LawnGreen Box   GreenYellow Box   Cyan Box   DarkOrchid Box   MediumVioletRed Box  plus     Purple Box   DarkOrange Box  equals     DodgerBlue Box   MediumSpringGreen Box   SaddleBrown Box   Fuchsia Box   Chartreuse Box   LawnGreen Box   GreenYellow Box   Cyan Box   DarkOrchid Box   MediumVioletRed Box   Purple Box   DarkOrange Box

We start with ten boxes, add two boxes, and now have twelve boxes.


Try this problem.

10
+
3
=
 
                    
+
      
=
                          
 
   LimeGreen Box   CadetBlue Box   PowderBlue Box   MediumBlue Box   Blue Box   Goldenrod Box   YellowGreen Box   Magenta Box   Empty Box   Chocolate Box  plus     Green Box   DeepSkyBlue Box   Turquoise Box  equals     LimeGreen Box   CadetBlue Box   PowderBlue Box   MediumBlue Box   Blue Box   Goldenrod Box   YellowGreen Box   Magenta Box   Empty Box   Chocolate Box   Green Box   DeepSkyBlue Box   Turquoise Box

We start with ten boxes, add three boxes, and now have thirteen boxes.


In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
10+ 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
10 + 10 = 20
10 + 11 = 21
10 + 12 = 22


The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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